Lenovo ThinkPad E550 AITE1 NM-A221 BIOS (REV 1.0)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | ThinkPad E550 |
| Board number | NM-A221 |
| Platform | AITE1 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 0.1 MB |
| Marks | tested by uploader, includes EC firmware |
| Added | October 24, 2022 |
| Updated | |
| Original file name | LENOVO_E550C_NM-A221_E550C_NM-A221_IT8586E_OK.rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
LENOVO THINKPAD E550 AITE1 NM-A221 REV 1.0 2014-09-12 i7-5500U WORKING BIOS & KBEC 100% BIOS dump for the Lenovo ThinkPad E550 laptop, board NM-A221 revision 1.0 (Compal ODM, platform AITE1). The package includes EC/KBC firmware and is marked as tested by the uploader, though that mark comes from the uploader and has not been independently verified. A dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Confirm that the board number and revision on your motherboard match before flashing, and back up the original chip contents first.
For board NM-A221 the catalog also has 4 schematics and 10 BIOS dumps.
Description generated from the catalog data. ·
Related files
Browse more
Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Lenovo ThinkPad E550 AITE1 NM-A221. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.